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Slip-On Intake Retainer for Honda GX390 & Big Block Clone Engines
Slip-On Intake Retainer for Honda GX390 & Big Block Clone Engines
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Slip-On Intake Retainer for Honda GX390 & Big Block Clone Engines

Part Number: 188F-13005-A
On sale: $2.60 $1.95
Phone Order Price:$2.08
You Save:$0.13(6%)
OEM Slip-On Intake Retainer for Honda GX390 & Clone Engines
Availability: In Stock.

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Description

Slip-On Style Intake Retainer for Honda GX390 & Big Block Clone Engines


Ensure reliable valve retention and engine performance with this Slip-On Style Intake Retainer, designed specifically for Honda GX390 engines and most GX390-style Big Block clones. This intake retainer is a direct replacement for stock engines that use slip-on style valve retainers, not split-lock or keeper systems.


Perfect for builders working with OEM or stock-style components, this retainer is made to fit intake valves with square-cut ends—commonly found on factory-installed valves. Before purchasing, verify that your valves are designed for slip-on retainers, as aftermarket valves typically require automotive-style split locks due to their round bead groove.


Key Features:

  • OEM-style slip-on fit – Designed for GX390 intake valves with square-cut tips
  • High compatibility – Fits many GX390-based Big Block Clone engines
  • Prevents valve train failure – Helps avoid valve drop and engine damage
  • Lightweight design – Retainer weight: ~10.9g


Important Fitment Note:

  • This intake retainer is for use without a lash cap.
  • The exhaust valve, by contrast, requires a lash cap when using this type of slip-on retainer.
  • Never run the exhaust valve without a lash cap, or you risk the valve slipping out, which can cause catastrophic engine failure.


Compatibility Tip:

If your valves have a round groove near the tip, they use split keepers and not slip-on style retainers. This part is intended only for valves with a square-cut end.

FAQ

Q1: What engines is this intake retainer compatible with?
A: This retainer fits Honda GX390 engines and most Big Block Clone engines that use slip-on style retainers with square-cut valve stems.


Q2: How do I know if my engine uses a slip-on style retainer?
A: If your valves have square-cut ends, they use slip-on retainers. Valves with a round bead groove require automotive-style split locks/keepers and are not compatible with this retainer.


Q3: What's the difference between intake and exhaust retainers in this application?
A: The intake retainer is designed to be used without a lash cap. In contrast, the exhaust valve typically requires a lash cap when using a slip-on style retainer. Without it, the valve could slip out and damage the engine.


Q4: Can I use this intake retainer on aftermarket valves?
A: Not usually. Most aftermarket valves have a bead groove for split locks, not a square-cut end. Always confirm your valve style before ordering.


Q5: What is the weight of this intake retainer?
A: Approximately 10.9 grams, making it a lightweight option for reliable valve retention.


Q6: What happens if I run the exhaust retainer without a lash cap?
A: Running without a lash cap on the exhaust side can cause the valve to slip out of the retainer, which can result in severe engine damage.

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